Yr 2 w-up 4/28

1
Problem Solving with Trigonometry
2
Do the following when solving trigonometry word
problems

1. Draw a picture.
2. Decide which trigonometry formula you must use.
3. Solve the word problem.

SOH CAH TOA
LAW OF SINES
Right Triangle Ratios
LAW OF COSINES
SAS TRIANGLE AREA
3
A large helium balloon is tethered to the ground
by two taut lines. One line is 100 feet long and
makes an 80 angle with the ground. The second
line makes a 40 angle with the ground. How long
is the second line, to the nearest foot? How far
apart are the tethers?
60
x
x 153 ft
y 135 ft
100 ft
80
40
y
4
A ships sonar locates a treasure chest at a 12
angle of depression. A diver is lowered 40
meters to the ocean floor. How far (to the
nearest meters) does the diver need to swim along
the ocean floor to get the treasure chest?
12
40 m
x 188 m
12
x
5
Farmer Joe needs to fence his triangular plot of
land for his cows. The angle between two sides
measures 83. One side is 122 ft and the other
is 215 ft. How much fencing does farmer Joe need
to the nearest foot? What is the area of his
plot of land?
571 ft
83
215 ft
122 ft
Area 13017 ft2
x
234 ft
6
Homework Mixed Trig Application Problems
Worksheet